Descriptions:Great replacement for your broken one with this star knob. Screw on Type design for easy install and with surface nice finish for comfortable grip. Widely used for lathe machine, mechanical equipment, instrument and apparatus, food and industry equipment. Specifications:Product Name: Star KnobType: Screw OnHead Diameter: 48mm / 1.89"Thread Length: 80mm/ 3.15"Thread Diameter: M10Total Height: 108mm / 4.25"Material: Metal & PlasticColor: Silver Tone, BlackWeight: 100g Package Content:1 x Star Knob.